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(No Model.) fleets-sheet 1.

I G VALLEY ELECTRIC GONTROLLER.

N0. 576,833. Patented Feb. 2,1897.

WITNESSES.

(No Model.)

A.BACK up a A151: AHEAD g 2 SheetsSheet 2. G. VALLEY.

ELECTRIC CONTROLLER.

' Patented Feb 2, 1897.

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UNITED STATES PATENT OFFICE.

GUSTAF VALLEY, OF J OHNSTOWN, PENNSYLVANIA, ASSIGNOR TO'THE STEEL MOTORCOMPANY, OF SAME PLACE.

ELECTRIC CONTROLLER.

SPECIFICATION forming part of Letters Patent No. 57 6,333, datedFebruary 2, 1897. Application filed November 10, 1896. Serial No.611,597. (No model.) I

T0 at whom it may concern.-

Be it known that I, GUSTAF VALLEY, of J ohnstown, in the county ofOambria, State of Pennsylvania, have invented certain new and usefulImprovements in Electric Controllers, of which the following is aspecification.

My invention relates to electric controllers, especially to suchcontrollers as are used on electric-railway cars or locomotives.

It relates more particularly to that type of controller which has twooperating-drums rotated by lever and a third drum used as areversing andcut-out switch. Such a switch is described in Letters Patent No.561,839, granted to me on June 9, 1896.

My invention consists in a novel arrangement of the various electriccontacts of the controller, of the conductors connecting certain of saidcontacts together, and of the conductors leading from the controller tocertain parts of the outside electrical apparatus.

The object of my invention is to provide a controller having twooperating-dru ms and a reversing and cut-out switch, by the use of whichcontroller the car may be propelled either when one of the motors orwhen one of the drums has become for any reason inoperative.

Referring to the drawings, Figure 1 is a diagram of the wiring of thecar embodying my improvement. Fig. 2 is a diagram similar to Fig. 1,but, for the sake of simplicity, omitting certain portions of the wiringand apparatus not claimed by me as new. Fig. 3 is a plan view of the topof the reversing and cut-out switch.

I have shown my invention as adapted for use with two motors and theirrespective resistances, fields, and shunt-resistances for weakening thefields. I shall call Athe circuit, which includes one of the motors andany or all of its parts. Included in this A circuit is also one of theoperating-drums of the controller.

Am, Ar, Af, As, and Ad are respectively the motor-armature, theresistance adapted to be put in circuit with the same, the motor-field,the resistance adapted to be put in multiple with the same, and one ofthe controller-drums. 13m, Br, Bf, Bs, and Ed are similar parts ofcircuit B.

IV V &c., and X X &c., are contacts on Ad.

P P, &c., are contact-fingers adapted to come into contact with the \Vand X group of contacts as the drum Ad is rotated. As the mechanicalarrangement of these drums is well known in the art and forms no part ofmy invention, I do not show or describe it.

Y Y the, and Z Z &c., are contacts on Bd.

Q, &c., are contact-fingers adapted to come into contact with the Y andZ groups of contacts as the drum Ed is rotated.

S S &c., are contacts mounted on the drum of the reversing and cut-outswitch in six vertical series.

R R &c., are contact-fingers adapted to be placed in contact with eitherof the six series of the S group, as desired.

Referring to Fig. 1, fifteen contact-fingers are shown in each of thePand Q groups. Of the P group P and P are connected with fingers of theB group. P P P P and P are connected to various parts of the A circuit,so that if I" is live and the P group are in contact with either the WorX group the current will pass through one, two, or all of Ar, Af, orA5, returning to the B group by means of the conductor connected to P Asthe control of the current through Ar, Af, and As forms no part of myinvention, I do not describe it in detail, but any one skilled in theart can trace it out from the diagram. To simplify the description, Ishow in Fig. 2 P and P directly connected bya dotted line.

Turning now to the drum Bd, Br, B8, and Bf are connected to the fingersof the Q, group in a somewhat similar manner to the P connections toparts of the A circuit. Q is connected to the same finger of the B groupas is P. Q and Q are connected to other fingers of the B group. Q isconnected to the ground side of the circuit. For the same reasonshereinbefore given for connecting P and P in Fig. 2 bya dotted line Ishow only four of the Q group in Fig. 2 and connect them by dottedlines. Q and Q are connected by a dotted line, (marked Ca.) As Q has noconnection with any of the Y group, the line Ca is an open circuitexcept when the Z and Q groups are in contact.

Cl) is a similar line connecting Q and Q This line is an open circuitexcept when the Y and Q groups are in contact. Cc is a similar lineconnecting Q and Q. This line is an open circuit except when the Z and Qseries are in contact.

Referring to Fig. 2, the six vertical rows of contacts in the S groupcorrespond to the six working positions of the reversing and out outswitch markcdabove the rows and again in Fig. 3. The B group oi fingersare connected as follows: it to P and Q, R" to the trolley-circuit T, itto Q], R to the forward actuating side of Am, It to P, R to the backwardactuating side of Am, B to the backward actuating side of Bm, R to Q Rto the forward actuating side of 13m, R to the ground side of thecircuit.

Suppose the reversing-switch to be placed at Go ahead and theoperating-drums so that the \V and Y groups are respectively in contactwith the I and Q groups. In these positions of the drums the currentwould take this path, T R R I P R S R Am, (forward,) R S S R Q Cb Q R SR Bm, (forward,) R S S R ground, thus going ahead with both motors inseries. Leaving the reversing-switch at the same position, but rotatingthe operating-drums so that the X and Z series are in contact with the Iand Q series, the path of the current would be T R S R, here the currentdividing, part of it taking the path I P R RAm, (forward,) it S S R Q CcQ, ground, and another part taking the path (3' Ca Q R S" It" 13m,(forward,) R 5 R ground, thus going ahead with the motors in multiple.

If the reversing and cut-out switch be moved to Back up, the onlyessential difference in the path of the current would be that from R itwould pass to S thence to It, so entering the armature Am on thebackward actuating side, and from 1% it would pass by S to R thusentering 13m on its backward ac tuating side.

\Vhen the reversing and cutout switch is turned to A go ahead, the pathwould be T R S It I 1" R S R Am, (forward,) R S S B ground, thus goingahead with only motor A, 13d being inoperative.

\Vhen the reversing and cut-out switch is turned to any of the fourpoints which cut out a motor, the drums are only rotated a liniiteddistance, the X and Z groups not coming in contact with the P and Qgroups.

\Vhen the reversing and cut-out switch is turned to A back up, the pathis T E S R P P R S" It Am, (baekwarth) R S S it thus going backward withmotor A only, the drum 13d being out of circuit.

When the reversing and cut-out switch is at B go ahead, the path is T RS R Q C?) Q B S 11 13m, (forward,) It S S It ground, thus going aheadwith motor 13, drum Ad being out of circuit.

\Vhen the reversing and cut-out switch is at 13 back up, the path is T RS R Q Cb Q R R 13177, (backward,) R S R ground, thus going backward withmotor l3 only, Ad being out of circuit.

It is now shown that by the use of my improved controller any part ofeither circuit A or circuit B or that either of the operative tli'illllSmay be rendered inoperative from an y cause without forbidding thepropulsion oi the vehicle upon which they are secured.

I do not limit myself to the exact details as herein described, for manymodifications can be made in the arrangement of the contacts,conductors, &c.,withoutdeparting from the scope of in yinvention.Neither do I limit myself to the use of my invention with any particularform of mechanical construction or arrangement of the controllers, norto the use of my invention on a vehicle supplied with two motors, as Imight have a plurality of motors in each of the A and l3 circuits setforth.

hat I claim, and desire to protect by Let ters Patent, is

1. In an electric controller, in combination, two movable groups ofcontacts adapted to regulate the course of the current by engagementwith fixed contacts, and an electric switch which allords means by whicheither group alone or both of said groups may be used to supply current.

2. I11 an electrically-propelled vehicle, a plurality of motors, anelectric controller ha in g two operating groups of movable contacts,part of said motors and one of said groups being in the same electriccircuit, the rest of said motors and the other of said groups being inanother electric circuit, and a switch having a plurality of operativepositions, some of said positions cutting out one of said circuits,others of said positions cutting out the other of said circuits, and athird set of said positions cutting out neither of said ch cuits.

3. In a controller for electric railways, two operating-drums and anelectric switch which affords means whereby either drum alone or bothdrums together may be used to supply electric current for propelling thevehicle.

1:. An electric controller containing two operating-drums and areversing and cut-out switch by the use of which either of said drumsmay be used to regulate the current to part of the motors, the other ofsaid. drums being inoperative.

5. An electric controller con'iprising two ope 'atingalruins and areversing and cnt-out switch, said switch having a plurality of operative positions, some of said positions cutting one drum out of theworking circuit, others of said positions cutting the other of saiddrums out of the working circuit, and a third set of said positionsputting both of. said drums in the working circuit.

(3. In an electrically propelled vehicle, a plurality of motors, anelectric controller having two operative drums, part of said motors andone of said drums being .in the same electric circuit, and the rest ofsaid. meters IO having seven operative positions substantially as, andfor the purpose, set forth, and

two operating-drums each connected to parts of the electrical apparatuscarried by the car for the purpose set forth.

In testimony whereof I have affixed my sig- I 5 nature in presence oftwo witnesses.

GUSTAF VALLEY. Witnesses:

HUGO NORMAN, H. W. SMITH.

